[Clinical study on gastric ulcers--the healing process of acute exacerbated gastric ulcers].
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D004381:Duodenal Ulcer / Q000473:pathology*; D004724:Endoscopy; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012737:Sex Factors; D013276:Stomach Ulcer / Q000473:pathology*